<template>
    <div>
        <el-breadcrumb separator-class="el-icon-arrow-right">
            <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
            <el-breadcrumb-item>用户管理</el-breadcrumb-item>
            <el-breadcrumb-item>用户列表</el-breadcrumb-item>
        </el-breadcrumb>
        <el-card>
            <el-row :gutter="20">
                <el-col :span="8">
                    <el-input placeholder="请输入内容" 
                    clearable 
                    v-model="queryInfo.query"
                    @clear="getUserList">
                        <el-button 
                        slot="append" 
                        icon="el-icon-search"
                        @click="getUserList"
                        ></el-button>
                    </el-input>
                </el-col>
                <el-col :span="4">
                    <el-button type="primary" @click="addDialogVisible = true">添加用户</el-button>
                </el-col>
            </el-row>
            <!--用户列表区-->
            <el-table :data="userlist" border stripe>
                <el-table-column type="index"></el-table-column>
                <el-table-column label="姓名" prop="username"></el-table-column>
                <el-table-column label="邮箱" prop="email"></el-table-column>
                <el-table-column label="电话" prop="mobile"></el-table-column>
                <el-table-column label="角色" prop="role_name"></el-table-column>
                <el-table-column label="状态">
                    <template slot-scope="scope">
                        <el-switch v-model="scope.row.mg_state" @change="userStateChanged(scope.row)">
                        </el-switch>
                    </template>
                </el-table-column>
                <el-table-column label="操作" width="180px">
                    <template slot-scope="scope">
                        <el-button 
                        type="primary" 
                        icon="el-icon-edit" 
                        size="mini"
                        @click="showEditDialog(scope.row.id)"></el-button>
                        <el-button 
                        type="danger" 
                        icon="el-icon-delete" 
                        size="mini"
                        @click="removeUserById(scope.row.id)"></el-button>

                        <el-tooltip effect="dark" content="分配角色" placement="top" :enterable="false">
                            <el-button type="warning" icon="el-icon-setting" size="mini" @click="setRole(scope.row)"></el-button>
                        </el-tooltip>
                    </template>
                </el-table-column>
            </el-table>
            <el-pagination
            @size-change="handleSizeChange"
            @current-change="handleCurrentChange"
            :current-page="queryInfo.pagenum"
            :page-sizes="[1,2,5,10]"
            :page-size="queryInfo.pagesize"
            layout="total, prev, pager, next, sizes, jumper"
            :total="total">
            </el-pagination>
        </el-card>
        <el-dialog 
        title="添加用户"
        :visible.sync="addDialogVisible" 
        width="50%"
        @close="addDialogClosed">
            <el-form :model="addForm" :rules="addFormRules" ref="addFormRef"
            label-width="70px">
                <el-form-item label="用户名" prop="username">
                    <el-input v-model="addForm.username"></el-input>
                </el-form-item>
                <el-form-item label="密码" prop="password">
                    <el-input v-model="addForm.password"></el-input>
                </el-form-item>
                <el-form-item label="邮箱" prop="email">
                    <el-input v-model="addForm.email"></el-input>
                </el-form-item>
                <el-form-item label="手机" prop="mobile">
                    <el-input v-model="addForm.mobile"></el-input>
                </el-form-item>
            </el-form>
            <span slot="footer" class="dialog-footer">
                <el-button @click="addDialogVisible = false">取消</el-button>
                <el-button type="primary" @click="addUser">确定</el-button>
            </span>
        </el-dialog>
        <el-dialog
        title="修改用户"
        :visible.sync="editDialogVisible"
        width="50%"
        @close="editDialogClosed">
        <el-form 
        :model="editForm" 
        :rules="editFormRules" 
        ref="editFormRef"
        label-width="70px">
            <el-form-item label="用户名">
                <el-input v-model="editForm.username" disabled></el-input>
            </el-form-item>
            <el-form-item label="邮箱" prop="email">
                <el-input v-model="editForm.email"></el-input>
            </el-form-item>
            <el-form-item label="手机" prop="mobile">
                <el-input v-model="editForm.mobile"></el-input>
            </el-form-item>
            
        </el-form>
        <span slot="footer" class="dialog-footer">
            <el-button @click="editDialogVisible = false">取 消</el-button>
            <el-button type="primary" @click="editUserInfo">确 定</el-button>
        </span>
        </el-dialog>
        <!--分配角色对话框-->
        <el-dialog 
        title="分配角色" 
        :visible.sync="setRoleDialogVisible" 
        width="50%"
        @close="setRoleDialogClosed">
            <div>
                <p>当前的用户:{{userInfo.username}}</p>
                <p>当前的角色:{{userInfo.role_name}}</p>
                <p>分配新角色:
                    <el-select v-model="selectedRoleId" placeholder="请选择">
                        <el-option
                        v-for="item in rolesList"
                        :key="item.id"
                        :label="item.roleName"
                        :value="item.id"></el-option>
                    </el-select>
                </p>
            </div>
            <span slot="footer" class="dialog-footer">
                <el-button @click="setRoleDialogVisible = false">取消</el-button>
                <el-button @click="saveRoleInfo">确定</el-button>
            </span>
        </el-dialog>
    </div>
</template>

<script>
export default {
    data(){
        //验证邮箱规则
        var checkEmail = (rule, value, cb) => {
            const regEmail = /^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+(\.[a-zA-Z0-9_-])+/
            if(regEmail.test(value)){
                return cb()
            }
            cb(new Error('请输入合法的邮箱'))
        }
        var checkMobile = (rule, value, cb) => {
            const regMobile = /^(0|86|17951)?(13[0-9]|15[0123456789]|17[678]|18[0-9]|14[57])[0-9]{8}$/
            if(regMobile.test(value)){
                return cb()
            }
            cb(new Error('请输入合法手机号'))
        }

        return{
            //获取用户列表
            queryInfo:{
                query:'',
                pagenum:1,
                pagesize:2
            },
            userlist:[],
            total:0,
            addDialogVisible:false,
            addForm:{
                username:'',
                password:'',
                email:'',
                mobile:''
            },
            //修改
            editDialogVisible:false,
            //查询到的用户信息
            editForm:{},
            //修改表单验证规则对象
            editFormRules:{
                email:[
                    {required:true, message:'请输入用户邮箱', trigger:'blur'},
                    {validator:checkEmail, trigger:'blur'}
                ],
                mobile:[
                    {required:true, message:'请输入用户手机', trigger:'blur'},
                    {validator:checkMobile, trigger:'blur'}
                ]
            },
            //控制分配角色对话框显示隐藏
            setRoleDialogVisible:false,
            //需要被分配角色用户信息
            userInfo:{},
            //所有角色数据列表
            rolesList:[],
            selectedRoleId:'',
            addFormRules:{
                username:[
                    {required:true, message:'请输入用户名', trigger:'blur'},
                    {min:3, max:10, message:'用户名长度在3到10个字符之间', trigger:'blur'}
                ],
                password:[
                    {required:true, message:'请输入密码', trigger:'blur'},
                    {min:6, max:15, message:'用户名长度在6到15个字符之间', trigger:'blur'}
                ],
                email:[
                    {required:true, message:'请输入邮箱', trigger:'blur'},
                    {validator:checkEmail, trigger:'blur'}
                ],
                mobile:[
                    {required:true, message:'请输入手机', trigger:'blur'},
                    {validator:checkMobile, trigger:'blur'}
                ]
            }
        }
    },
    created(){
        this.getUserList()
    },
    methods:{
        async getUserList(){
            const {data:res} = await this.$http.get('users', {params:this.queryInfo})
            console.log(res)
            if(res.meta.status !== 200) return this.$message.error('获取用户列表失败')
            this.userlist = res.data.users
            this.total = res.data.total
        },
        handleSizeChange(newSize){
            this.queryInfo.pagesize = newSize
            this.getUserList()
        },
        handleCurrentChange(newPage){
            this.queryInfo.pagenum = newPage
            this.getUserList()
        },
        async userStateChanged(userinfo){
            const {data:res} = await this.$http.put(`users/${userinfo.id}/state/${userinfo.mg_state}`)
            if(res.meta.status !== 200){
                userinfo.mg_state = !userinfo.mg_state;
                return this.$message.error('更新状态失败')
            }
            this.$message.success('更新状态成功')
        },
        addDialogClosed(){
            this.$refs.addFormRef.resetFields()
        },
        addUser(){
            this.$refs.addFormRef.validate(async valid => {
                if(!valid) return
                const {data:res} = await this.$http.post('users', this.addForm)
                if(res.meta.status !== 201){
                    this.$message.error('添加用户失败')
                }
                this.$message.success('添加用户成功')
                this.addDialogVisible = false
                //重新获取用户数据
                this.getUserList()
            })
        },
        async showEditDialog(id){
            const {data:res} = await this.$http.get('users/' + id)
            if(res.meta.status !== 200){
                return this.$message.error('查询用户信息失败')
            }
            this.editForm = res.data
            this.editDialogVisible = true
        },
        //监听修改用户对话框的关闭事件
        editDialogClosed(){
            this.$refs.editFormRef.resetFields()
        },
        //修改用户信息提交
        editUserInfo(){
            this.$refs.editFormRef.validate(async valid => {
                if(!valid) return
                //发起修改信息数据
                const {data:res} = await this.$http.put('users/' + this.editForm.id, {
                    email:this.editForm.email,
                    mobile:this.editForm.mobile
                });
                if(res.meta.status !== 200){
                    return this.$message.error('更新用户信息失败')
                }
                //关闭对话框
                this.editDialogVisible = false
                //刷新数据列表
                this.getUserList()
                //提交成功
                this.$message.success('更新用户信息成功')
            })
        },
        //根据id删除信息
        async removeUserById(id){
            //弹框
            const confirmResult = await this.$confirm('此操作将永久删除用户,是否继续?','提示',{
                confirmButtonText:'确定',
                cancelButtonText:'取消',
                type:'warning'
            }).catch(err => err);
            if(confirmResult !== 'confirm'){
                return this.$message.info('已取消删除')
            }
            const {data:res} = await this.$http.delete('users/' + id)
            if(res.meta.status !== 200){
                return this.$message.error('删除用户失败')
            }
            this.$message.success('删除用户成功')
            this.getUserList();
        },
        //展示分配角色对话框
        async setRole(userInfo){
            this.userInfo = userInfo
            //在展示对话框前获取所有角色列表
            const {data:res} = await this.$http.get('roles')
            if(res.meta.status !== 200){
                return this.$message.error('获取角色列表失败')
            }
            this.rolesList = res.data

            this.setRoleDialogVisible = true
        },
        //点击按钮分配角色
        async saveRoleInfo(){
            if(!this.selectedRoleId){
                return this.$message.error('请选择要分配的角色')
            }
            const {data:res} = await this.$http.put(`users/${this.userInfo.id}/role`,{
                rid:this.selectedRoleId
            })
            if(res.meta.status !== 200){
                return this.$message.error('更新角色失败')
            }
            this.$message.success('更新角色成功')
            this.getUserList()
            this.setRoleDialogVisible = false
        },
        //监听分配角色对话框关闭事件
        setRoleDialogClosed(){
            this.selectedRoleId = ''
            this.userInfo = {}
        }
    }
}
</script>

<style lang="less" scoped>

</style>